mdn/fred

MDN's frontend since late 2025, built with Web Components, Lit, and SSR for a fast, clean documentation experience. Fred = /fr(ont)e(n)d/.

JavaScript

Mozilla Public License 2.0

Fred is MDN's next frontend, built with Web Components, Lit, and SSR to deliver a fast, clean documentation experience. It's designed for developers working on MDN's documentation platform, offering modern tooling, responsive design, and support for the Baseline widely available browser set.

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Support the dependencies of mdn/fred

codemirror/lang-css

CSS language support for the CodeMirror code editor

codemirror/lang-html

HTML language support for the CodeMirror code editor

codemirror/lang-javascript

JavaScript language support for the CodeMirror code editor

codemirror/lang-wast

WebAssembly Text Format support for the CodeMirror code editor

codemirror/state

Editor state data structures for the CodeMirror code editor

codemirror/theme-one-dark

One Dark theme for the CodeMirror code editor

projectfluent/fluent.js

Localization library for expressive translations.

lit/lit

SSR for Lit

lit/lit

Client package for @lit-labs/ssr.

lit/lit

A controller for Lit that renders asynchronous tasks.

mdn/rari

npm package for rari

mdn/watify

Compile WAT to WASM with WASM 🙇

mozilla/glean.js

An implementation of the Glean SDK, a modern cross-platform telemetry client, for JavaScript environments.

codemirror/basic-setup

Basic configuration for the CodeMirror code editor

open-cli-tools/concurrently

Run commands concurrently

thecodrr/fdir

The fastest directory crawler & globbing alternative to glob, fast-glob, & tiny-glob. Crawls 1m files in < 1s

mathiasbynens/he

A robust HTML entities encoder/decoder with full Unicode support.

chimurai/http-proxy-middleware

The one-liner node.js proxy middleware for connect, express, next.js and more

bevacqua/insane

Lean and configurable whitelist-oriented HTML sanitizer

lit/lit

A library for building fast, lightweight web components

lit/lit

HTML templates literals in JavaScript

pngwn/prism-svelte

Svelte language extension for prismjs

PrismJS/prism

Lightweight, robust, elegant syntax highlighting. A spin-off project from Dabblet.

evanw/node-source-map-support

Fixes stack traces for files with source maps

codemirror/autocomplete

Autocompletion for the CodeMirror code editor

codemirror/commands

Collection of editing commands for the CodeMirror code editor

codemirror/language

Language support infrastructure for the CodeMirror code editor

codemirror/lint

Linting support for the CodeMirror code editor

codemirror/view

DOM view component for the CodeMirror code editor

csstools/postcss-plugins

PostCSS plugin to define global data that will be injected into PostCSS for use in other plugins.

eslint/rewrite

Compatibility utilities for ESLint

eslint/eslint

ESLint JavaScript language implementation

JackRobards/lit-analyzer

CLI that type checks bindings in lit-html templates

JackRobards/lit-analyzer

Typescript plugin that adds type checking and code completion to lit-html. Fork of the original ts-lit-plugin.

mdn/browser-compat-data

Browser compatibility data provided by MDN Web Docs

mdn/yari

web-infra-dev/rsdoctor

web-infra-dev/rspack

CLI for rspack

web-infra-dev/rspack

The fast Rust-based web bundler with webpack-compatible API

DefinitelyTyped/DefinitelyTyped

TypeScript definitions for compression

DefinitelyTyped/DefinitelyTyped

TypeScript definitions for cookie-parser

DefinitelyTyped/DefinitelyTyped

TypeScript definitions for express

DefinitelyTyped/DefinitelyTyped

TypeScript definitions for he

DefinitelyTyped/DefinitelyTyped

TypeScript definitions for insane

DefinitelyTyped/DefinitelyTyped

TypeScript definitions for mocha

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Top contributors

caugner

442 contributions

dependabot[bot]

414 contributions

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Support the dependencies of mdn/fred

codemirror/lang-css

CSS language support for the CodeMirror code editor

codemirror/lang-html

HTML language support for the CodeMirror code editor

codemirror/lang-javascript

JavaScript language support for the CodeMirror code editor

codemirror/lang-wast

WebAssembly Text Format support for the CodeMirror code editor

codemirror/state

Editor state data structures for the CodeMirror code editor

codemirror/theme-one-dark

One Dark theme for the CodeMirror code editor

projectfluent/fluent.js

Localization library for expressive translations.

lit/lit

SSR for Lit

lit/lit

Client package for @lit-labs/ssr.

lit/lit

A controller for Lit that renders asynchronous tasks.

mdn/rari

npm package for rari

mdn/watify

Compile WAT to WASM with WASM 🙇

mozilla/glean.js

An implementation of the Glean SDK, a modern cross-platform telemetry client, for JavaScript environments.

codemirror/basic-setup

Basic configuration for the CodeMirror code editor

open-cli-tools/concurrently

Run commands concurrently

thecodrr/fdir

The fastest directory crawler & globbing alternative to glob, fast-glob, & tiny-glob. Crawls 1m files in < 1s

mathiasbynens/he

A robust HTML entities encoder/decoder with full Unicode support.

chimurai/http-proxy-middleware

The one-liner node.js proxy middleware for connect, express, next.js and more

bevacqua/insane

Lean and configurable whitelist-oriented HTML sanitizer

lit/lit

A library for building fast, lightweight web components

lit/lit

HTML templates literals in JavaScript

pngwn/prism-svelte

Svelte language extension for prismjs

PrismJS/prism

Lightweight, robust, elegant syntax highlighting. A spin-off project from Dabblet.

evanw/node-source-map-support

Fixes stack traces for files with source maps

codemirror/autocomplete

Autocompletion for the CodeMirror code editor

codemirror/commands

Collection of editing commands for the CodeMirror code editor

codemirror/language

Language support infrastructure for the CodeMirror code editor

codemirror/lint

Linting support for the CodeMirror code editor

codemirror/view

DOM view component for the CodeMirror code editor

csstools/postcss-plugins

PostCSS plugin to define global data that will be injected into PostCSS for use in other plugins.

eslint/rewrite

Compatibility utilities for ESLint

eslint/eslint

ESLint JavaScript language implementation

JackRobards/lit-analyzer

CLI that type checks bindings in lit-html templates

JackRobards/lit-analyzer

Typescript plugin that adds type checking and code completion to lit-html. Fork of the original ts-lit-plugin.

mdn/browser-compat-data

Browser compatibility data provided by MDN Web Docs

mdn/yari

web-infra-dev/rsdoctor

web-infra-dev/rspack

CLI for rspack

web-infra-dev/rspack

The fast Rust-based web bundler with webpack-compatible API

DefinitelyTyped/DefinitelyTyped

TypeScript definitions for compression

DefinitelyTyped/DefinitelyTyped

TypeScript definitions for cookie-parser

DefinitelyTyped/DefinitelyTyped

TypeScript definitions for express

DefinitelyTyped/DefinitelyTyped

TypeScript definitions for he

DefinitelyTyped/DefinitelyTyped

TypeScript definitions for insane

DefinitelyTyped/DefinitelyTyped

TypeScript definitions for mocha